Spring-wheel.



H. E. J. FOERSTER.

SPRING WHEEL.

APPLICATION FILED SEPT. 30, 1911.

1,023,010, Patented'Apr. 9, 1912.

2 BHBETS-BHBET 1.

Har yEJFberster H. E. J. FORESTER.

SPRING WHEEL. APPLIOA'HOH TILED SEPT. 30, 1911.

Patented Apr. 9, 1912.

2 Minn-sum z.

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j 1 reassure i f j i-rsteat eanpseg ora Applicationfiledffieptember fiq,i911. Seria111' o.652,085.

To all uibmn it incy-iconcm:

Be-it-=knon that- I HARRY- E. J. Forums,

a citizen ofthe United States, residing at' St. Louis, State ofMissouri, have invented new and useful Improvements in Spring- Wheels,of which the. following is a speci cation.

The invention relates to vehicle wheels, and more particularly to theclass of spring wheels. i f

The primary object of the invention is the.

a vehicle wheel of this type in which the'tread portion thereof will beresiliently sup orted, so as to permit the yielding of the ve irre larground, so that all shocks and jars inci cut to the travel thereof willbe absorbed by the wheel.

Another object of the invention is the pro vision of a wheel of .thischaracter in w rob the springs interposed between the tread and thetelly of the wheel may be adjusted, so as provision of a. wheel which issimple in construction, strong,

accordance with the invention.

durable, capable of being easily and quickly-repaired, possessing therequisite yieldabilit for the absorption of shocks and jars inci cut tothe travel thereof, and that is inexpensive in manufacture.

'W'ith these and other objects in view, the invention consists in theconstruction, combi-nation and arrangement of parts, as will behereinafter more fully described, illustrated in the accompanyingdrawings, and pointed out in'the claim hereunto a pended.

In the drawings: Figure 1 is'a agmentary sideelevation of a wheelconstructed in Fig. 2 is asimilar view, showing one of the side platesremoved. Fig. 3 is a fragmentary vertical sectional view through thewheel. Fi 4 is a sectional view on the line 4-4 of ig. 2.

Similar reference characters indicate correspondin parts throughout the"several views of t e drawings.

Referring to the drawings by numerals, the vehicle wheel com rises a hub5 which is of the ordinary well known construction having pro'c'ctingtherefrom the usual radial spokes 6, t e outer ends of which areconnected with the felly 7 surrounded by a ring icle wheel whentraveling over outer face with a' channel 9 forming a seat for resilientdevices, presently described.

Arranged concentrically withrespect to 3 the rin or annulus is a s litrim or annulus 10 whic is of considerab y greater diameter than the orannulus 8, and is formed in its outer sur ace with achannel 11 receivina rubber 12 of the cushion type, althoug the same may be of any othertype desired, and of the ordinary well-known -construction.

Interposed'between the inner ring 8 and the outer rim 10 are alternatelyarranged leaf and coiled sprin elements 13 and 14, respectively, thecoil spring elements bein of the compression type, and are' arrange inpairs between the leaf springs 13 WhlCl'l are inwardly bowed, the freeends of which frictionally engage the outer rim 10, while. the medialportions thereof are bridged by transversely disposed retaining blocks15 suitably fixed'to the opposite'walls of the.

channel 9 in the ring 8. The coiled springs 14 have their ends connectedin outernnd inner athusting screws 16 and 17, respectively, the outerscrews 16 being threaded in the-outer rim 10, while the inner screws 17are passed through suitable alining apertin-es formed in the inner ring8 and the folly 7, and have enga ed therewith nuts 18, so that thetensionof te said coiled springs 14 may be increased or decreased on theadjustment of the said nuts 18, when desired. Threaded in "the blocks 15are binding screws 19 which enga e the leaf springs 13, so as to preventisplacement thereof. Threaded in the telly 7 and the inner rin 8, atopposite sides of the blocks 15, are a justing screws 20 which aredesigned to engage with the leaf sprin s 13, for increasing or decreasinthe bowe formation thereof, thereby 'regiilating the tension of thesame, and also to permit the centering of the hub 5 in the wheel.

Disposed against opposite sides of the inner ring 8 and the outer rim 10are circular side or guide plates 21, the same being fixed to the'sidesof the outer rim 10 by means of screw members 29.. The said plates 21are provided with open centers 23, and said plates serve to prevent thelateral dislacement of the inner ring 8 and the telly carrying thesame,'and also guide the center ortion of the wheel when the same isdisp aoed during the travel of the wheel over irregular portions of theground, the

springs bein designed to absorb shocks and jarsinciden to-the travel ofthe wheel.

It is of course to be understood that changes in the form, proportion,and the minor details of construction may be resorted to, without deartin from the s irit,

'or sacrificing any o -the a vantages o the invention. 7

What is claimed is:

The combination with a wheel rim, of an externally, channeled bendmounted about said rim and having cross bridge pieces at intervalsthroughout ,its circumference, a tire supportin annulus arrangedconcentrically about e said band, inwardly bowed springs treinedbeneaththe bridge pieces and having their ends frictionally engaging and suporting the annulus, locking screws thread in the bridge pieces forsecuring the springs against 0 ment, and adtisting screws thresdedthrough the rim and and and engaging each spring. at two points thereofspaced from its center.

In testimon whereof I aflix my signature in presence 0 -'two witnesses.

HARRY n. J. FOERSTER.

Witnesses JOHN E. Forms-ma, ALBERT Komm.

ngit-udinalr displace- 20

